Fundamentally, all writing is about the same thing; it's about dying, about the brief flicker of time we have here, and the frustration that it creates.
I don't write on set. I also - in a funny way, I don't really differentiate between the writing and directing. I think it's all sort of the same thing.
When you're an actress, you are a part of the storytelling process. You have to do the same thing when you direct.